<template>
  <div>
    <h3>这个是Father组件---navite--{{ num }}--{{ num2 }}</h3>
    <!-- <Son :value="num" @input="(val)=> num = val"/> -->
    <Son :a.sync="num" :b.sync="num2" />
  </div>
</template>
<script>
import Son from './Son.vue'
export default {
  components: {
    Son
  },
  data() {
    return {
      num: 100,
      num2: 200
    }
  },
  methods: {
    hClick() {
      alert('ok')
    }
  }
}
</script>
